Home / 3,427.10-5,140.55-962.09

Finding the Fourth Proportional to 3,427.10, 5,140.55 and 962.09

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Solution

The fourth proportional to 3,427.10, 5,140.55 and 962.09 is: 1,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.10 : 5,140.55 = 962.09 : x
  2. Step 2: Convert to fraction form
    3,427.10/5,140.55 = 962.09/x
  3. Step 3: Cross multiply
    3,427.10x = 5,140.55 × 962.09
  4. Step 4: Simplify right side
    3,427.10x = 4,945,648.45
  5. Step 5: Solve for x
    x = 4,945,648.45/3,427.10
  6. Step 6: Final answer
    x = 1,443.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.